The big secret is that History from below is a better way to deliver setting than History from above. There's a reason the large majority of Fantasy fiction, even if it does include the elites, starts from either an outsider's perspective or a more rural perspective. Generally, in Fantasy, the common people communicate the majority of the setting, while the elites communicate the majority of the plot. A great example of this is the Witcher games, but you can see it in most pieces of Fantasy.
This is a general rule of thumb, not a hard and fast rule, and there are many exceptions to be had. Often though, these exceptions tend to rely on a blend of commoner and elite for their main characters. A great example is A Song of Ice and Fire. Though Ned Stark is a noble (and, in a way, a royal too), his attachments to the smallfolk and their influence on him permeates the story through both his perspective and that of his kids. And of course, A Feast for Crows is almost entirely about the little people; though, before that point, many characters have a huge amount of interaction with those "beneath" their social status.
Hobbits are a great example of the general rule in action. Aragorn's story and all that stuff is what the plot is about, but the story (and its heart) starts with rural hobbits.
In the realms of D&D and the wider fantasy RPG scene, the talent many writers have is greatly increasing. Likewise, the trends of today are reflected in the works they create, sometimes directly, sometimes subconsciously. As a result, we get more adventures that do what OP is talking about. And again, this is just a general rule, not an absolute.
This is a general rule of thumb, not a hard and fast rule, and there are many exceptions to be had. Often though, these exceptions tend to rely on a blend of commoner and elite for their main characters. A great example is A Song of Ice and Fire. Though Ned Stark is a noble (and, in a way, a royal too), his attachments to the smallfolk and their influence on him permeates the story through both his perspective and that of his kids. And of course, A Feast for Crows is almost entirely about the little people; though, before that point, many characters have a huge amount of interaction with those "beneath" their social status.
Hobbits are a great example of the general rule in action. Aragorn's story and all that stuff is what the plot is about, but the story (and its heart) starts with rural hobbits.
In the realms of D&D and the wider fantasy RPG scene, the talent many writers have is greatly increasing. Likewise, the trends of today are reflected in the works they create, sometimes directly, sometimes subconsciously. As a result, we get more adventures that do what OP is talking about. And again, this is just a general rule, not an absolute.